Tree guard



FIG. 1 is a top perspective view of a tree guard showing my new design;

FIG. 2 is a front elevation thereof;

FIG. 3 is an elevation thereof, taken at an angle of 45 degrees fromFIG. 2;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a bottom plan view thereof.

The ornamental design for a tree guard, substantially as shown anddescribed.